C A 1 Material Aluminum 2 Form Cylinder 3 Diameter 12.8 mm 50.8 mm 4 Gauge Length 5 Tensile Testing To Failure 7 8 Load (N) Length (mm) 9 0 50.8 10 7330 50.851 11 15100 50.902 12 23100 50.952 13 30400 51.003 14 34400 51.054 15 38400 51.308 16 41300 51.816 17 44800 52.832 18 46200 53.848 19 47300 54.864 20 47500 55.88 21 46100 56.896 22 44800 57.658 23 42600 58.42 24 36400 59.182 25
Design Against Fluctuating Loads
Machine elements are subjected to varieties of loads, some components are subjected to static loads, while some machine components are subjected to fluctuating loads, whose load magnitude tends to fluctuate. The components of a machine, when rotating at a high speed, are subjected to a high degree of load, which fluctuates from a high value to a low value. For the machine elements under the action of static loads, static failure theories are applied to know the safe and hazardous working conditions and regions. However, most of the machine elements are subjected to variable or fluctuating stresses, due to the nature of load that fluctuates from high magnitude to low magnitude. Also, the nature of the loads is repetitive. For instance, shafts, bearings, cams and followers, and so on.
Design Against Fluctuating Load
Stress is defined as force per unit area. When there is localization of huge stresses in mechanical components, due to irregularities present in components and sudden changes in cross-section is known as stress concentration. For example, groves, keyways, screw threads, oil holes, splines etc. are irregularities.
Step by step
Solved in 2 steps with 2 images